Gear-controlling device for motor-vehicles.



No. 821,161. PATENTED MAY 22, 1906. E. B. GADSBY & G. P. DORRIS.

GEAR CONTROLLING DEVICE FOR MOTOR VEHICLES.

APPLICATION FILED OGT. s. 1904.

2 SHEETSSHBET 1.

.110. 821,161. PATENTED MAY 22, 1000. E. B. GADSEY & G. P. 130111110. GEAR 00112120111110 11311101: FOR MOTOR VEHICLES.

APPLICATION FILED OCT. 5, 1904. H

2 SHEIITS-SHEET 2.

yea 3/ %1 ,UNITED, STATES PArnT m.

EDWARD B. GADSEY' AND GEORGE P. DORRIS, OF ST. LOUIS, MISSOURI. J.

GEAR-CONTROLLING. DEVICE FOR moTon-vE lcLEs.

Specification of Letters Patent.

Applicationfiled October 5, 1904. Serial No. 227.207.

was May 22, race.

States, residing in the city of St. Louis, in the State of Missouri,-have invented certain new and useful Improvements in Gear-Controllin Devices for Motor-Vehicles, of which the f0 owing is a full, ,clear, and exact description, reference being had to the accompanyg drawings, forming part of this specification.

. Our invention relates to a device through the medium ofwhich the gearing of a motorvehicle may be quickl and efliciently .altered to provide for irect drivin action with respect to the engine-shaft an also to provide for change of speed throhgh alteration in the association 0 the ear members.

' Our invention consists in eatures of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a longitudinal section taken through the gearing of a motor-vehicle and showing our improvement applied thereto. Fig. II is a vertical cross-section taken on line II II, Fig. I, lookin in the direction of the arrow at said line. ig. III is a vertical cross-section taken on line III III, Fig. I. Fig. IV is "a cross-section taken on line IV IV, Fig. I, looking in the direction of the arrow at said line. Fi V is a cross-section taken on line V V, Fig. lookin in the direction of the arrow at said line.

1g. VI is a pers ective view of the bell-crank rocker carrie by the clutch-controlling foot-lever of a motorvehicle. the notched forward en controlling rod.

1 designates the gear-casing, in which the gearing of a motor-vehicle is mounted m a common manner. No invention per se is herein claimed for this gearing; but it will be sufficiently described to provide for anunof the shift-gear- ,derstanding of the appllcation of our improvement thereto.

2 designates the driven shaft, whlch passes longitudinally through the casing 1, being mounted in suitable bearings.

3 is a gear-Wheel shaft that is journaled in suitable bearings mounted in the casing 1 the shaft 3 being arranged in a line arallel with the shaft 2. Fixed to the she transmission gear-wheel 4, low-speed gear- Whee1s'5 and 6, and a reversing-plnion 7.

8 .is a sleeve loosely mounted on the for- Ward end of the driven shaft'2. This sleeve imeter of the slide-collar 16. 1 collar 16 is moved outwardly on the sleeve 8, 3 either by manual action or under the action I of the spring 17, said collar rides between the rollers 20 and swings the rocker 19 to force :the clutch-disk 13 outwardly to frictionally clam the driving member 15 between the Fig. VII isa perspective view ofcarries at its rear end a gear-head 9, that is constantly in mesh with the transmission gearwheel 4, and on the rear face of said gearhead are clutch teeth 10. (See Fig. IV.) At the outer end of the sleeve 8 and integral therewith is a driven clutch-disk 11.

13 1s a clutch-rim slidably keyed on the hub 11 of the clutch-disk 11. Y

15 is a clutch-driving member having the web thereof positioned between the frictionrings 12 and 14:. This driving member is designed to receive power from a suitable motor.

16 is a grooved slide-collar mounted on the sleeve 8. and backed by a coil-s ring 17, the tendency of the action of whic is to force the slide-collar in a direction toward the clutch just described.

18 is a collar fixed to the clutch-disk hub 11, and 19 represents rockers, each having one end projecting toward the clutch-ring 13 and having loosely mounted in the other end a roller 20, that normally rests a ainst the per- II'hen the shdeclutc members 11 and 13, andwhen the collar 16 is reciprocated rearwardly the rockers are freed, so that the clutch members 11 13 are rendered inactive, so that the driving member 15 may rotate between them Without driving action.

21 is a reciprocating gear member slidably mounted on the driven shaft 2, and that includes a gear 22, arranged for engagement with the low-speed gear-wheel 5, and a large gear 23', arranged for engagement with the ow-speed gear-wheel 6 on the shaft 3.

24 represents clutch-teeth carriedby the forward end of the gear member 21 and arranged for engagement with the clutch-teeth 10 when said member is reciprocated on the driven shaft toward the inner end of the sleeve gear-head 9. v

25 (see Fig. II) is a gear-wheel mounted on a shaft 26 inde endently of the shafts 2 and 3 and arrange in mesh with the gear 23 of the member 21, this ear-wheel 25 being an intermediate gear an meshing with the reversing-pinion 7 to impart retrograde rotation to the shaft 3, which is transmitted through the transmission gear-wheel 4 to the carried thereby.

27 desi ates a yoke that is fitted to the gear mem er 21.

28 is a reciprocating throw-rod that extends longitudinally through the rear end of the casing -1 and throu h the upper end of the yoke 27', the said rod eing provided with a nut 29, that bears against the rear face of said yoke. The rear end of the throw-rod has united to it a coupling 30, that leads to a lever 31, pivotally supported at 32 intermediate of its ends, and connected to said lever at the opposite end from that to which the throw-rod 28 is connected is an operatingrod 33, that leads to a hand-lever 34.

35 designates a controlling-bar carried by the throw-rod 28 and extending forwardly from the yoke 27. This controlling-bar is provided in its upper side with a series of notches 36, 37, 38, and 39, (see Figs. I and VII,) the said bar being extended through i he fIorward end of the casing 1, as seen 1n 40 designates a foot-lever that is supported by a rocker-shaft 41, pivotally mounted in a bracket 42, surmounting the gear-casmg 1 tal rearwardly-extending arm 44 and a downwardlyextending arm 45, the said rocker being fixed to the rock-shaft 41 at the 'unction of its arms, as seen most clearly in ig. VI. The rocker-arm 45 is provided at its lower end with fork-arms 46, that straddle the slide-collar 16 and are furnished with studs 47, that enter the groove in said collar.

48 is a roller journaled tothe rear end of the horizontal rocker-arm 44 and arranged to enter into either of the notches in the controlling member 35 when said controlling member is shifted longitudinally thereunder.

49 is the operating-rod, leading from the foot-lever 4() to the brake mechanism of a motor-vehicle. (Not shown.)

In the ractical use of our improvement the operatlon of theparts is as follows: When the arts are in the position shown in Fig. I, in w 'ch the ear 22 of the gear member 21 is in mesh the low-speed gear-wheel 5, the power from the driven shaft 2 is conducted to the gear-wheel shaft 3 and transmitted by transmission-gear 4 to the sleeve 8 on the driven shaft throu hthe medium of the gear-head 9. During t e rotation of thecrank-rocker arm 44, rests in the notch 37 of the controllin -bar 35.

Should it 43 is a bell-crank rocker having a horizone desired to throw the driven shaft lnto dlrect driving engagement with thesleeve 8, the hand-lever34 is thrown rearwardly, thereby reciprocating the operatingrod 30 and imparting forward reciprocation to the throw-rod 28 through the medium of the lever 31. When this is done, the controllin -bar 35 is reciprocated forwardly to carr the notch 36 therein into a position beneat which movement the roller rides over the crown between the notches 37 and 36, and the forked rocker-arm 45 causes rearward reciprocation of the slide-collar 16 to throw the clutch-driving member out of action. The forward reciprocation of the throw-rod and controlling-bar causes like movement to be imparted to the ear member 21, with the result that the clutc -teeth 24, carried bysaid member, are moved into en agement with the clutch-teeth 10 of the gearsad 9, and therefore a positive connection of said members is obtained for the direct driving of the clutchcarrying sleeve. Should it be desired to obtain a low speed in the gearing, the hand-lever 34 is thrown forwardly instead of rearwardly, with the result that the controllingbar 35 is reciprocated rearwardly to carry the notch 38 t erein to the roller 48, so that said roller will rest therein, and when this is done the large gear 23 of the gear member 21 is placed in mesh with the gear-wheel 6 on the gear-shaft 3. To reverse the action of the gearing, the controlling-bar 35 is reciprocated rearwardly to a sulficient extent to carry the notch 39 to the roller 48, and as a consequence of such extreme movement the gear 23 is carried into mesh with the intermediate gear 25 to occasion reverse rotation of the gear-shaft 3 through the medium of the reversing-pinion 7, so that retrograde rotation will be transmitted to the clutch-carrying sleeve 8.

When the brake mechanism is to be thrown into action, the foot-lever 40 is pressed forwardly, thereb downwardly-extending roc er-arm' 45 rearwardly to retract the slide-collar 16 and render the clutch members 11 and 13 inactive, and at thesame time a pull is effected upon throwing the v the rocker-carried roller 48, during the brake-operating rod 49, during which 210- I tion the rocker-arm 44 is elevated to raise the roller 48 out of either of the notches in the controllin -bar in which'it was seated; but the contro lin -bar is unaffected by such movement, and t erefore sai roller returns to its former position to hold the controllingbar as before without the gearing in its {311:- viously-set condition being disturbed. 's actuation provides for the throwin of the clutch out of action and applying the rake to the vehicle in one operation.

We claim as our invention- 1. In a ear-controlling device for motorvehicles, t e combination with a changeable gearing of the character described, of a spring-controlled clutch, a reciprocatory notched bar secured to a part of said gearing, a single lever for changing the gearing and reciprocating said bar, and means for releasing said clutch when'the gearing is changed; said means comprising a bell-crank rocker having one of its arms connected to the clutch and having its other arm adapted to ride on said notched bar for vertical reciprocation thereon when the bar is reciprocated.

2. In a gear-controlling device for motorvehicles, the combination with a changeable gearing of the character described, of a spring-controlled clutch, a reciprocatory notched bar secured to a part of said gearing,

a single lever for changing the gearing and reciprocating said bar, and means for releasing said clutch when the gearing is changed; said means comprising a bell-crank rocker having one of its arms connected to the clutch and having a roller on its other arm adapted to ride on said notched bar for vertical reciprocation thereon when the bar is reciprocated.

EDWARD B. GADSEY. GEORGE P. DORRIS. In presence of NELLIE V. ALEXANDER, BLANCHE HOGAN. 

